FPMIMO: Radar MIMO dengan Subarray-Subarray Non-Koheren

Tahcfulloh, Syahfrizal (2020) FPMIMO: Radar MIMO dengan Subarray-Subarray Non-Koheren. Doctoral thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tidak seperti radar Phased Array (PA) yang memberikan array gain proporsional dengan jumlah elemen-elemen antena, radar MIMO memberikan perbaikan terhadap estimasi parameter, deteksi target, dll. Terkini, kombinasi dari konsep radar PA dan MIMO yaitu radar Phased MIMO (PMIMO) menggunakan overlapping subarray pada array transmit yang bertujuan untuk mengeksploitasi kelebihan utama dari radar PA (gain koheren) dan kelebihan utama radar MIMO (diversitas waveform). Pendekatan radar Full PMIMO (FPMIMO) yang digunakan pada penelitian ini (evolusi lanjut dari radar PMIMO) yaitu mengimplementasikan overlapping subarray pada kedua sisi array baik di transmit maupun di receive sehingga kombinasi-kombinasi berbagai variasi waveform dapat secara simultan dikonfigurasikan untuk meningkatkan gain koheren dan diversitas waveform. Peningkatan pada kedua gain tersebut membentuk kinerja radar yang lebih robust melawan noise dan interferensi pada target yang dituju. Parameter-parameter kinerja radar FPMIMO yang diperhitungkan seperti transmit-receive (T-R) gain, SINR (Signal-to-Interference-plus-Noise-Power Ratio), maximum range, identifiabilitas parameter (jumlah maksimum target terdeteksi dari virtual array), deteksi target (probabilitas deteksi, probabilitas false alarm, dll), dan fungsi ambiguitas (yang mendeskripsikan resolusi range dan/atau frekuensi Doppler) telah diformulasikan dan keefektivitasannya juga telah dibandingkan dengan jenis-jenis radar lain seperti radar PA, MIMO, dan PMIMO. Hasil-hasil evaluasi numerik menunjukkan bahwa radar FPMIMO, membentuk general form dari radar multi-antena, secara fleksibel mampu mengkompromikan antara jumlah subarray pada Tx-Rx array untuk memperoleh kinerja-kinerja radar yang adaptif, fleksibel, dan terprogram dengan radar PA, MIMO, dan PMIMO merupakan kondisi khususnya. Dengan demikian radar FPMIMO memiliki keunggulan fleksibilitas tinggi terhadap berbagai kondisi target seperti contoh desain radar untuk aplikasi radar burung dan radar kendaraan yang memenuhi mission requirement tertentu. Pengaruh penggunaan elemen realistik seperti elemen antena tipe-cos(θ) juga turut disajikan.
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Unlike the phased array (PA) radar that achieves array gain in proportion to the number of elements, the MIMO radar provides improvement to parameter estimation, target detection, and so on. Recently, the combination of the PA and MIMO concepts into the Phased MIMO (PMIMO) radar uses overlapping subarrays on transmit array that aim to exploit the main advantage of the Phased Array radar (PA) i.e. coherent gain, and the main advantage of the MIMO radar i.e. waveform diversity. The Full PMIMO radar approach used in this research, the future evolution of the PMIMO radar, is to implement overlapping subarrays on both sides of the arrays, namely transmit and receive so that combinations of various waveforms can be simultaneously configured to increase coherent gain and waveform diversity. To increase in both gains provides a robust of radar performance against noise and interference in the desired target. The radar performance in terms of the transmit-receive (T-R) gain, the SINR (Signal-to-Interference-plus-Noise-Power Ratio), the maximum range, the parameter identifiability i.e. the maximum number of detectable target and virtual array, the target detection i.e. probability of detection, probability of false alarm, etc, and the ambiguity function i.e. the function indicates the range resolution and the Doppler shift, has been formulated and its effectiveness has been compared to PA, MIMO, and PMIMO radar. The numerical evaluation results demonstrate that, being the more general form of multi-antenna radars, the FPMIMO radar is able to flexibly compromise the number of subarrays in the Tx-Rx array to obtain high radar performance, adaptable, flexible, and programmable where the PA, MIMO, and PMIMO radar are special conditions. Thus the FPMIMO radar has advantages of high flexibility so that they are easily adapted to various target conditions such us radar design example for bird and vechicular radar applications by meeting certain of mission requirements. The impact of the use of cos(θ)-type elements is also presented.

Item Type:	Thesis (Doctoral)
Additional Information:	RDE 621.382 4 Tah f-1
Uncontrolled Keywords:	target detection, parameter estimation, ambiguity function, noncoherent subarray, MIMO radar, phased array radar
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6564 Radio transmitter-receivers T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6592.O6 Optical radar T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20001-(S3) PhD Thesis
Depositing User:	Syahfrizal Tahcfulloh
Date Deposited:	14 Mar 2025 02:49
Last Modified:	14 Mar 2025 02:49
URI:	http://repository.its.ac.id/id/eprint/75133

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